Improvement im devices for charging beer with gas



J. G. KENNEDY.

Devices for BhargingBeer with Gas.

I Patented Nov. 24,1874.

I III.

THE GRAPHIC CO. P'HOTO- LITH.39& 4-! PARK PLAOE,N.Y

UNITED STATES ATENT Orrrc JOHN G. KENNEDY, OF GOSHEN, INDIANA, ASSIGNOR TO HIMSELF AND HENRY KILEY, OF TOLEDO, OHIO.

IMPROVEMENT IN DEVICES FOR CHARGING BEER WlTH GAS.

Specification forming part of Letters Patent No. 157.181, dated November 24, 1874; application filed July 20, 1874.

To all whom it may concern Be it known that I, JOHN G. KENNEDY, of Goshen, in the county of Elkhart and State of Indiana, have invented a Device for Charging Beer-Casks with Gas, of which the following is a specification:

The object of my invention is to provide a device to be intermediately connected with a holder, containing carbonic-acid gas under high pressure, and a beer-cask, for the purpose of maintaining a supply of gas in the cask at a less pressure than exists in the gasholder, thereby enabling the beer to be kept fresh and lively for a long time after its cask is tapped. The invention consists in peculiar construction and arrangement of the various parts, as more fully hereinafter set forth.

Figure 1 represents, in perspective, my device as connected with a beer-cask and a gasholder. Fig. 2 is a longitudinal vertical sec tion. Fig. 3 is an enlarged sectional detail of the valve, spindle, and diaphragm.

In the drawing, A is a circular case, open at one end, which is made to screw into a flange upon the periphery of a circular back piece, A, from the center of which a pipe, a, projects to the rear, and which is provided with a union or other coupling for connecting it to a gas-holder, B, and above with a pipe, b, to be connected by a flexible pipe with the beercask O. The back piece A is surmounted by a pressure-gage, D, whose base is connected with the passage leading to the pipe I). At the inner end of the pipe to, a seat, 0, is formed, against which a valve, d, mounted on a stem, 6, may seat itself, the stem playing loosely through a larger bore in a cap, f, screwed on the inner end of said pipe to; and is secured by a set-screw, g, in the bottom of a socket, h, at the inner end of a spindle, E, which pro trudes through a screw-cap, l, on the neck of the casecover; and on its outer end is screwed a nut, m. A seat for the valve is also formed in the cap f. G is a sheet-rubber diaphragm, confined at the periphery to a shoulder in the case A by an internal screw ring, 0, and through which the spindle E is inserted until its socket h rests against said diaphragm, on the outer side of which a disk, F, is secured by a nut, i, on the spindle. Astrong spiral spring, a, Fig. 2, is placed on the spindle, resting on the nut i, and is compressed by the screw-cap l.

The holder is charged with carbonic-acid gas at a high pressuresay, three hundred pounds to the square inchand is connected with the pipe at by a flexible tube. The beercask is connected with the pipe b in like manner. The cap lis screwed down on the spring a until the latter is compressed with force enough to just keep the valve 61 on the seat in the cap f, as against the pressure of the gas in the holder upon said valve d, and the pressure of the contents of the cask upon the diaphragm G. When the pressure in the cask is reduced by the withdrawal of a portion of its contents, the spring forces the valve (1 off its seat in the cap, allowing gas from the holder to flow past the valve, spindle, and out from the socket h into the case, thence through the pipe binto the cask until there is pressure enough in the latter acting upon the diaphragm, combined with that upon the valve from the gas-holder, to push forward and seat the valve again, closing the case to the further admission of gas. The spring may be compressed so as to have it act when the pressure in the cask falls below a given limit, say, six pounds to the square inch, while the nut m regulates the play of the valve, which nut may be unscrewed to let the valve close against the seat 0, and thus shut off the gas entirely, if desired.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination of case A A, provided with the pipes to b and gage D, of the valve (7, stem 6, cap f, spindle E, socket h, disk F, diaphragm G, nut 1', cap Z, nut m, and spring 01, substantially as and for the purpose set forth.

JOHN G. KENNEDY.

Witnesses:

EDWARD E. ACHERLY, G. L. TAYLOR. 

